Antique Norwalk Cast Brass Double Key (dead bolt and Maid key) Entrance  Set. Outside Plate is 7" x 2  1/4". Brass Mortise lock Dated 1865, Brass End is 6  7/8" x 7/8". Lock is 3  1/2" deep and 4 1/4" tall and a 2 5/8" Backset, and a Drop of 3".  The lock has been cleaned and lubed and is 100% functional with both keys, and ill last another 100 years.  Mortise Lock  Can be for Right Hand OR Left Hand Swing Doors, (Instructions included to change door swing on lock)    #820